Advice

My son is formula fed and has been since day one. He’s 1 month and eating 3 ounces but he’s barely making it an hour and a half before he’s screaming again. I’ve tried to soothe him thinking maybe it was something else but he just got so worked up he was sweating all over and I finally just fed him again and he was okay. I had his one month check up on Wednesday and his doctor said it was normal for him to eat 3 oz every 2.5-3 hrs but he’s not making it that long. Should I go ahead and up his intake to 4 oz?